Littelfuse 5KP7.0C Transient Voltage Suppressor - Equivalent & Substitute Parts

Part Overview

The Littelfuse 5KP7.0C is a bidirectional Zener transient voltage suppressor (TVS) diode designed for general-purpose overvoltage protection applications. This component features a 7V reverse standoff voltage, 12.6V maximum clamping voltage, and 5000W peak pulse power rating in a through-hole P600 axial package. The 5KP7.0C is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

5KP7.0C

LittelfuseIn Stock: 7455KP7.0C Datasheet

Current PartRFQ

5KP7.0CA

Littelfuse Inc.In Stock: 44785KP7.0CA Datasheet

DirectRFQ

5KP7.0CE3/TR13

Microchip TechnologyIn Stock: 9415KP7.0CE3/TR13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP7.0C is determined by the following critical parameters:

• Voltage - Reverse Standoff: 7V (exact match required)
• Voltage - Clamping (Max) @ Ipp: 12.6V maximum (substitutes must not exceed this value to maintain circuit protection integrity)
• Power - Peak Pulse: 5000W (exact match required)
• Package / Case: P600, Axial (mechanical and electrical compatibility)
• Bidirectional Channels: 1 (functional requirement)
• Operating Temperature Range: -55°C to 175°C (thermal compatibility)
• RoHS Status: ROHS3 Compliant (regulatory requirement)

Two active substitute parts meet these criteria and are grouped as follows:

Group 1 - Direct Littelfuse Substitute: 5KP7.0CA (Tape & Reel packaging variant, active product status)

Group 2 - Cross-Manufacturer Substitute: 5KP7.0CE3/TR13 (Microchip Technology, manufacturer-recommended alternative)

Parameter Comparison

Engineering Selection Recommendations

5KP7.0CA (Littelfuse Inc.) is the primary substitute for the obsolete 5KP7.0C. Both components are manufactured by Littelfuse, share identical reverse standoff voltage (7V), and maintain the same 5000W peak pulse power rating. The 5KP7.0CA features a lower maximum clamping voltage (12V versus 12.6V), providing enhanced protection margins. This part is in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). The primary difference is packaging format: the 5KP7.0CA is supplied in Tape & Reel configuration for automated assembly, whereas the original 5KP7.0C was supplied in bulk.

5KP7.0CE3/TR13 (Microchip Technology) is a manufacturer-recommended cross-manufacturer substitute. This part maintains the 7V reverse standoff voltage and 5000W peak pulse power rating with identical thermal operating range (-55°C to 175°C). The maximum clamping voltage is 13.3V, which exceeds the original specification by 0.7V. This part is in active production status with ROHS3 compliance and REACH unaffected status. Selection of this substitute requires confirmation that the higher clamping voltage is acceptable for the target application circuit.

Both substitutes are electrically and mechanically compatible with the original 5KP7.0C in through-hole P600 axial package applications. Component selection should be based on packaging requirements (bulk versus Tape & Reel) and clamping voltage tolerance for the specific circuit design.

Frequently Asked Questions (FAQ)

Q: Can the 5KP7.0CA be used as a direct replacement for the 5KP7.0C?

A: Yes. Both parts share the same 7V reverse standoff voltage, 5000W peak pulse power rating, P600 axial package, and operating temperature range. The 5KP7.0CA is the active equivalent part. The primary difference is packaging format: 5KP7.0CA is supplied in Tape & Reel, while 5KP7.0C was supplied in bulk.

Q: What is the significance of the different clamping voltages between the substitutes?

A: The 5KP7.0CA has a maximum clamping voltage of 12V, while the 5KP7.0CE3/TR13 has 13.3V. Both remain within acceptable substitution parameters. The lower clamping voltage of the 5KP7.0CA provides tighter voltage regulation. The higher clamping voltage of the 5KP7.0CE3/TR13 requires verification that the protected circuit can tolerate the additional 0.7V transient voltage.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the 5KP7.0CA and 5KP7.0CE3/TR13 are ROHS3 compliant, meeting current environmental and regulatory requirements.

Q: What is the difference between Tape & Reel and bulk packaging?

A: Tape & Reel packaging is designed for automated pick-and-place assembly equipment, while bulk packaging is used for manual assembly or lower-volume applications. Both packaging formats contain the same electronic component with identical electrical specifications.

Q: Can the Microchip 5KP7.0CE3/TR13 be used in all applications where the 5KP7.0C was used?

A: The Microchip part is electrically and mechanically compatible. However, the 13.3V maximum clamping voltage is 0.7V higher than the original 12.6V specification. Verify that the protected circuit design can tolerate this higher transient voltage before substitution.

Q: What is the current-carrying capacity difference between the substitutes?

A: The 5KP7.0CA carries 425A peak pulse current, while the 5KP7.0CE3/TR13 carries 376A. Both meet the 5000W peak pulse power requirement. The higher current capacity of the 5KP7.0CA may provide additional design margin in current-limited applications.